Tried using some old wrought iron from a 1920s farm gate for a knife, the grain structure was a total surprise

2 comments

2 Comments

Remember my buddy tried that with an old wagon spring. He got it hot and the metal just kinda... flowered open like weird steel lace. Totally threw him off.

jade472mo agoMost Upvoted

Yeah I used to think old steel was just tougher. But I saw something like that happen with a leaf spring from a truck. Heated it up and it just crumbled apart, like burnt paper almost. Made me realize that old metal gets tired, like it's been worked too hard. Changes how you pick your materials for sure.